I have been using the thin styrofoam boards from Walmart that start as big boards. I cut them to size, then wrap fabric around them. We do not have a comic book store nearby. I would have to go to Houston for one, but I am thinking about ordering some. I will need a lot more of either to wrap all or most of my fabric. I takes time to cut the boards and I could be sewing and finishing a quilt I have started that is on my fleece design wall!